| 摘要 |
A DC-DC high frequency boost converter with a supply voltage input ( 110 ), a boosted voltage output ( 112 ), a series circuit of an inductor ( 114 ) and a rectifying device ( 116 ) connected in series between said supply voltage input ( 110 ) and said boosted voltage output ( 112 ), has a switch ( 124 ) connected between ground and a connection node ( 120 ) of said inductor ( 114 ) and said rectifying device ( 116 ). A control circuit ( 126 ) is provided for controlling said switch ( 124 ), and a zero inductor current detection circuit ( 128 ) is provided that compares a voltage (U<SUB>n</SUB>) on said connection node ( 120 ) with a reference voltage (U<SUB>ref</SUB>) and provides a zero inductor current indication (Comp) when both voltages are equal.
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